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This is a multi-part message in MIME format. ------_=_NextPart_001_01C1A091.A42C6240 Content-Type: multipart/alternative; boundary="----_=_NextPart_002_01C1A091.A42C6240" ------_=_NextPart_002_01C1A091.A42C6240 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sun Hardware Diagnostics=20 =20 The POST-based hardware diagnostics only check out the devices and buses required to access I/O devices; they do not check the devices themselves. Even so, the onboard hardware diagnostics can often pinpoint the source of a hardware failure.=20 To run Sun hardware diagnostics, perform the following at the ok> prompt:=20 ok> setenv auto-boot? false ok> setenv diag-switch? true ok> setenv diag-level max ok> setenv diag-device disk net (if appropriate) ok> reset (watch results of diagnostic tests)=20 If devices appear to be missing, you can also run the following tests: ok> probe-scsi-all ok> probe-sbus ok> show-sbus ok> show-disks ok> show-tapes ok> show-nets ok> show-devs=20 In addition, the following commands can be used to examine the CPUs or switch to another CPU: ok> module-info ok> processor_number switch-cpu=20 Sometimes additional information can be obtained by navigating the PROM device tree <promnav.html>. You can also look at the OBP manual <http://sundocs.princeton.edu:8888/ab2/coll.216.1/@Ab2CollView?> for additional information on PROM monitor diagnostics.=20 At the end of this process, reset your PROM parameters: ok> setenv auto-boot? true (if appropriate) ok> setenv diag-switch? false (if appropriate)=20 (Note that the diagnostics can take a substantial amount of time to run, depending on your hardware configuration. Most admins prefer to turn them off unless they are diagnosing a problem.)=20 For sun4u (Ultra) systems, you can get some of this information by running /usr/platform/`arch -k`/sbin/prtdiag -v on a running system.=20 Results from the above should be compared to log entries in /var/adm/messages or console error messages.=20 Additional PROM Diagnostics=20 Some additional PROM diagnostics are available at the ok> prompt. To discover what additional diagnostics are available for your hardware, type help diag at the ok> prompt. The output will include the appropriate syntax for all available PROM diagnostic functions. Note that reset should be run as above before running the tests. It is also possible that test-all might hang the system, requiring a power cycle.=20 ------_=_NextPart_002_01C1A091.A42C6240 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Diso-8859-1"> <META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version = 6.0.4712.0"> <TITLE>Solaris#Sun Hardware Diagnostics</TITLE> </HEAD> <BODY> <!-- Converted from text/rtf format --> <P><B><FONT SIZE=3D6 FACE=3D"Times New Roman">Sun Hardware = Diagnostics</FONT></B> <BR><FONT FACE=3D"Arial" SIZE=3D2 COLOR=3D"#000000"> <IMG SRC=3D"No%20AttachName" alt=3D"ole0.bmp"></FONT> <BR> <BR><FONT FACE=3D"Times New Roman">The POST-based hardware diagnostics = only check out the devices and buses required to access I/O devices; = they do n